"The nationalist Svoboda party and the Udar party led by former boxer Vitali Klitschko pulled out of the group of legislators that took over after former President Viktor Yanukovich was ousted by protesters seeking closer ties with the European Union. Parliament speaker Oleksandr Turchynov said it was up to Udar and Svoboda to propose a candidate for temporary prime minister to lead the government until early parliamentary elections can be held."

The New York Times adds that it's unclear if Yatsenyuk's announcement was symbolic or if he actually was leaving the government.